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TM 10-3930-409-24P
Code
Application/Explanation
PA
Stocked items; use the applicable NSN to
PB
request/requisition items with these
PC* *
source codes. They are authorized to the
PD
category indicated by the code entered in
PE
the 3d position of the SMR code.
PF
** Items coded PC are subject to
PG
deterioration.
Items with these codes are not to be re-
KD
quisitioned individually. They are part of a
KF
kit which is authorized to the maintenance
KB
category indicated in the 3d position of the
SMR code. The complete kit must be
requisitioned and applied.
Items with these codes are not
MO-(Made at UM/
to be requested/requisitioned
AVUM Level)
individually. They must be
MF-(Made at DS/
made from bulk material which
AVUM Level)
is identified by the part number
MH-(Made at GS
in the DESCRIPTION AND
Level)
USABLE ON CODE (UOC)
ML-(Made at Spe-
column and listed in the Bulk
calilzed Repair
Material group of the repair
Activity
parts list in this RPSTL. If the
(SRA))
item is authorized to you by the
MD-(Made at
3d position code of the SMR
Depot)
code, but the source code
indicates it is made at a higher
level, order the item from the
higher level of maintenance.
Items with these codes are not
AO-(Assembled by
to be requested/requisitioned
UM/ AVUM
individually. The parts that
Level)
make up the assembled item
AF-(Assembled by
must be requisitioned or
DS/AVIM
fabricated and assembled at
Level)
the level of maintenance
AH- (Assembled by
indicted by the source code. If
GS Category)
the 3d position code of the
AL-(Assembled by
SMR code authorizes you to
SRA)
replace the item, but the
AD-(Assembled by
source code indicates the item
Depot)
is assembled at a higher level,
order the item from the higher
level of maintenance.
XA -
Do not requisition an "XA"-coded item.
Order its next higher assembly. (Also
refer to the NOTE following.)
XB -
If an "XB" item is not available from
salvage, order it using the CAGEC and part
number given.
XC-
Installation drawing, diagram, instruction
sheet, field service drawing, that is
identified by the manufacturer's part
number.
XD -
Item is not stocked. Order an
"XD"-coded item through normal supply
channels using the CAGEC and part
number given, if no NSN is available.
NOTE: Cannibalization or controlled exchange, when
authorized, may be used as a source of supply for items
with the above source codes, except for those source
coded "XA" or those aircraft support items restricted by
requirements of AR 700-42.
(2) Maintenance Code. Maintenance codes tell
you the level(s) of maintenance authorized to USE and
REPAIR support items. The maintenance codes are
entered in the third and fourth positions of the SMR code
as follows:
(a) The maintenance code entered in the third
position tells you the lowest maintenance level authorized
to remove, replace, and use an item. The maintenance
code entered in the third position will indicate authorization
to one of the following levels of maintenance.
Code
Application/Explanation
C-
Crew or operator maintenance done
within unit maintenance or aviation unit
maintenance.
O -
Unit maintenance or aviation unit category
can remove, replace, and use the item.
F-
Direct support or aviation intermediate
level can remove, replace, and use the
item.
H -
General support level can remove,
replace, and use the item.
L-
Specialized repair activity can remove,
replace, and use the item.
D -
Depot level can remove, replace, and use
the item.
(b) The maintenance code entered in the
fourth position tells whether or not the item is to be
repaired and identifies the lowest maintenance level with
the capability to do complete repair (i.e., perform all
authorized repair functions). (NOTE: Some limited repair
may be done on the item at a lower level of maintenance,
if authorized by the Maintenance Allocation Chart (MAC)
and SMR codes.) This position will contain one of the
following maintenance codes:
Code
Application/Explanation
O -
Unit maintenance or aviation unit is the
lowest level that can do complete repair of the
item.
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